package collection.stream;

import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.Random;

public class StreamApiDemo2 {
    public static void main(String[] args) {
        Random random = new Random();
        List<Integer> list =new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            list.add(random.nextInt(100));
        }
        System.out.println("原始集合："+list);
        Optional<Integer> value = list.stream().min((e1,e2)->e1-e2);
        System.out.println("min:"+value.get());
        value = list.stream().max((e1,e2)->e1-e2);
        System.out.println("max:"+value.get());
        value = list.stream().reduce((e1,e2)->e1+e2);
        System.out.println("sum:"+value.get());
        boolean b = list.stream().anyMatch(e->e%2==0);
        System.out.println("是否有偶数："+b);
    }
}
